Forum Discussion

Anonymous's avatar
Anonymous
Not applicable
7 years ago

how to expose converted MySQL query

I have a Power BI report that connects to a cloud source via an ODBC driver.  The cloud source's DB is MySQL.  I have a fairly long and complicated list of steps that are applied in my query (e.g., q...
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Anonymous's avatar
Anonymous
Not applicable
7 years ago

I just discovered that there is a View Native Query feature when you right-click on certain steps in the query.  In particular, so far, I see that there are are queries for Navigation and Removed Other Columns steps.  I was expecting to see a query only for the Navigation step.  Does this imply that Power BI reads the data multiple times?

  • v-frfei-msft's avatar
    v-frfei-msft
    Community Support
    7 years ago

    Hi Anonymous,

     

    You can find the M code in the power query, please refer to the picture as below.

     

     

    Regards,

    Frank

    • Anonymous's avatar
      Anonymous
      Not applicable
      7 years ago

      Hi v-frfei-msft,

       

      I know I can expose the M query.  My problem is that I need the M query converted to the query language of the source (in this case, MySQL).  I now know that I can view the source query with the 'View Native Query' feature (right-click on a step in the query editor).  However, I don't understand why I can see 'View Native Query' for 2+ steps.  I was expecting to see only 1 native query.  For example, I expect to see a native query for the default Navigation step, but I wasn't expecting to see a native query for a 'Removed Other Columns' step.  Does this imply that 2+ queries are issued to the source?  Or, does Power BI convert the 2+ queries into 1 query and issue that 1 query to the source?